US20060288817A1 - Crank for cycles - Google Patents
Crank for cycles Download PDFInfo
- Publication number
- US20060288817A1 US20060288817A1 US11/168,900 US16890005A US2006288817A1 US 20060288817 A1 US20060288817 A1 US 20060288817A1 US 16890005 A US16890005 A US 16890005A US 2006288817 A1 US2006288817 A1 US 2006288817A1
- Authority
- US
- United States
- Prior art keywords
- shank
- gasket
- engaged
- orifice
- crank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2164—Cranks and pedals
Definitions
- the present invention relates to a crank, and more particularly to a crank for bicycles or the like having a hollow structure and having a gasket engaged therein.
- cranks for bicycles or the like comprise an elongated crank body formed by molding or forging process and having a solid structure, and normally made of cast metal materials, that may have a great weight and that may greatly increase the weight of the cycles, such as unicycles, bicycles, tricycles, etc.
- U.S. Pat. No. 5,121,474 to Arregui Suinaga and U.S. Pat. No. 4,521,207 to Husted disclose two of the typical cranks for bicycles or the like which also comprise an elongated crank body formed by molding or forging process and having a solid structure, and should also be made of cast metal materials, that may have a great weight and that may greatly increase the weight of the bicycles, or the like.
- the typical cranks for bicycles or the like failed to provide a hollow structure for reducing the weight of the cranks.
- the present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional cranks for bicycles.
- the primary objective of the present invention is to provide a crank for bicycles including a hollow structure for reducing the weight of the cycles.
- the other objective of the present invention is to provide a crank for bicycles including a gasket engaged therein, for reinforcing the crank.
- a crank for cycles including an elongate shank having an orifice formed therein, a chamber formed by an upper wall and a lower wall, and a gasket engaged into the chamber via the orifice of the shank, and may be provided for such as reinforcing the hollow shank.
- the gasket is engaged between the walls of the shank, a fastener is engaged through the orifice of the shank and a bore of the gasket.
- the shank includes one or more teeth extended into the orifice
- the gasket includes one or more teeth extended into the bore and aligned with the teeth of the shank
- the fastener includes one or more teeth engaged with the teeth of the shank and the gasket.
- the gasket includes one or more slots formed in an outer peripheral portion for increasing a resilience of the gasket and for allowing the gasket to be easily engaged into the chamber via the orifice of the shank.
- the shank includes an aperture having an inner diameter smaller than that of the orifice, a second gasket is engaged into the chamber via the orifice and includes a bore aligned with the aperture of the shank.
- the shank includes one or more teeth extended into the aperture, the gasket includes one or more teeth extended into the bore and aligned with the teeth of the shank, a fastener is engaged through the aperture of the shank and the bore of the gasket, and includes one or more teeth engaged with the teeth of the shank and the gasket.
- FIG. 1 is an exploded view of a crank for bicycles in accordance with the present invention
- FIG. 2 is a perspective view of the crank for the bicycles
- FIG. 3 is a cross sectional view of the crank for the bicycles.
- FIG. 4 is a top plan view of the crank for the bicycles.
- a crank for cycles in accordance with the present invention comprises an elongate shank 10 including a hollow chamber 11 formed therein and defined by an outer peripheral wall or an upper wall 12 and a lower wall 13 , and including an orifice 14 formed in one end 15 thereof.
- the elongate shank 10 further includes one or more teeth 16 extended into the orifice 14 thereof, and includes an aperture 17 formed in the other end 18 thereof, and further includes one or more teeth 19 extended into the aperture 17 thereof. It is preferable that the aperture 17 includes an inner diameter equals to, and preferably smaller than that of the orifice 14 of the shank 10 .
- a gasket 20 includes an outer diameter equals to or smaller than that of the orifice 14 but greater than that of the aperture 17 of the shank 10 , for engaging into the chamber 11 via the orifice 14 of the shank 10 , and includes a bore 21 having an outer diameter equals to that of the aperture 17 of the shank 10 , and includes one or more teeth 22 extended into the bore 21 thereof and preferably aligned with the teeth 19 of the shank 10 .
- a fastener 30 is engaged through the aperture 17 of the shank 10 and engaged into the bore 21 of the gasket 20 , and includes one or more teeth 32 engaged with the teeth 19 , 22 of the shank 10 and the gasket 20 , and includes a head 33 engaged with the shank 10 , and includes a threaded end 34 for engaging with a lock nut 35 , and includes a screw hole 36 formed therein.
- Another gasket 40 includes an outer diameter greater than that of the orifice 14 , and includes a number of slots 41 , 42 formed in the outer peripheral portion thereof for allowing the gasket 40 to be squeezed and engaged into the chamber 11 via the orifice 14 of the shank 10 and retained between the walls 12 , 13 .
- the gasket 40 includes a bore 43 formed therein and having an outer diameter equals to that of the orifice 14 of the shank 10 , and includes one or more teeth 44 extended into the bore 43 thereof and aligned with the teeth 16 of the shank 10 .
- Another fastener 50 is engaged into or through the orifice 14 of the shank 10 and engaged into the bore 43 of the gasket 40 , and includes one or more teeth 52 engaged with the teeth 16 , 44 of the shank 10 and the gasket 40 , and includes an enlarged head 53 engaged with the shank 10 , and includes a threaded end 54 formed therein, for engaging with a lock nut 55 , and includes a screw hole 56 formed therein.
- the elongate shank 10 includes a hollow chamber 11 formed therein, and may thus include a hollow structure for reducing the weight of the elongate shank and the bicycles, and may further include a gasket engaged therein, for reinforcing the elongate shank 10 .
- the conventional cranks fail to provide a shank 10 having a hollow chamber 11 formed therein, and one or more gaskets 20 , 40 for engaging into the chamber 11 and retained between the walls 12 , 13 of the shank 10 .
- the crank for bicycles in accordance with the present invention includes a hollow structure for reducing the weight of the cycles, and includes a gasket engaged therein, for reinforcing the crank.
Abstract
A crank for bicycles or other cycling facilities includes an elongate shank having an orifice formed in one end, and a chamber formed by an upper wall and a lower wall, a gasket is engaged into the chamber via the orifice of the shank. The gasket is engaged between the walls of the shank, and a fastener may be engaged through the orifice of the shank and may be engaged through a bore of the gasket. The shank includes an aperture having an inner diameter smaller than that of the orifice, a second gasket may be engaged into the chamber via the orifice of the shank and includes a bore aligned with the aperture of the shank.
Description
- 1. Field of the Invention
- The present invention relates to a crank, and more particularly to a crank for bicycles or the like having a hollow structure and having a gasket engaged therein.
- 2. Description of the Prior Art
- Typical cranks for bicycles or the like comprise an elongated crank body formed by molding or forging process and having a solid structure, and normally made of cast metal materials, that may have a great weight and that may greatly increase the weight of the cycles, such as unicycles, bicycles, tricycles, etc.
- For example, U.S. Pat. No. 5,121,474 to Arregui Suinaga, and U.S. Pat. No. 4,521,207 to Husted disclose two of the typical cranks for bicycles or the like which also comprise an elongated crank body formed by molding or forging process and having a solid structure, and should also be made of cast metal materials, that may have a great weight and that may greatly increase the weight of the bicycles, or the like. The typical cranks for bicycles or the like failed to provide a hollow structure for reducing the weight of the cranks.
- The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional cranks for bicycles.
- The primary objective of the present invention is to provide a crank for bicycles including a hollow structure for reducing the weight of the cycles.
- The other objective of the present invention is to provide a crank for bicycles including a gasket engaged therein, for reinforcing the crank.
- In accordance with one aspect of the invention, there is provided a crank for cycles including an elongate shank having an orifice formed therein, a chamber formed by an upper wall and a lower wall, and a gasket engaged into the chamber via the orifice of the shank, and may be provided for such as reinforcing the hollow shank.
- The gasket is engaged between the walls of the shank, a fastener is engaged through the orifice of the shank and a bore of the gasket. The shank includes one or more teeth extended into the orifice, the gasket includes one or more teeth extended into the bore and aligned with the teeth of the shank, and the fastener includes one or more teeth engaged with the teeth of the shank and the gasket. The gasket includes one or more slots formed in an outer peripheral portion for increasing a resilience of the gasket and for allowing the gasket to be easily engaged into the chamber via the orifice of the shank.
- The shank includes an aperture having an inner diameter smaller than that of the orifice, a second gasket is engaged into the chamber via the orifice and includes a bore aligned with the aperture of the shank. The shank includes one or more teeth extended into the aperture, the gasket includes one or more teeth extended into the bore and aligned with the teeth of the shank, a fastener is engaged through the aperture of the shank and the bore of the gasket, and includes one or more teeth engaged with the teeth of the shank and the gasket.
- Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
-
FIG. 1 is an exploded view of a crank for bicycles in accordance with the present invention; -
FIG. 2 is a perspective view of the crank for the bicycles; -
FIG. 3 is a cross sectional view of the crank for the bicycles; and -
FIG. 4 is a top plan view of the crank for the bicycles. - Referring to the drawings, and initially to
FIGS. 1-4 , a crank for cycles in accordance with the present invention comprises anelongate shank 10 including ahollow chamber 11 formed therein and defined by an outer peripheral wall or anupper wall 12 and alower wall 13, and including anorifice 14 formed in oneend 15 thereof. - The
elongate shank 10 further includes one ormore teeth 16 extended into theorifice 14 thereof, and includes anaperture 17 formed in theother end 18 thereof, and further includes one ormore teeth 19 extended into theaperture 17 thereof. It is preferable that theaperture 17 includes an inner diameter equals to, and preferably smaller than that of theorifice 14 of theshank 10. - A
gasket 20 includes an outer diameter equals to or smaller than that of theorifice 14 but greater than that of theaperture 17 of theshank 10, for engaging into thechamber 11 via theorifice 14 of theshank 10, and includes abore 21 having an outer diameter equals to that of theaperture 17 of theshank 10, and includes one ormore teeth 22 extended into thebore 21 thereof and preferably aligned with theteeth 19 of theshank 10. - A
fastener 30 is engaged through theaperture 17 of theshank 10 and engaged into thebore 21 of thegasket 20, and includes one ormore teeth 32 engaged with theteeth shank 10 and thegasket 20, and includes ahead 33 engaged with theshank 10, and includes a threadedend 34 for engaging with alock nut 35, and includes ascrew hole 36 formed therein. - Another
gasket 40 includes an outer diameter greater than that of theorifice 14, and includes a number ofslots gasket 40 to be squeezed and engaged into thechamber 11 via theorifice 14 of theshank 10 and retained between thewalls gasket 40 includes abore 43 formed therein and having an outer diameter equals to that of theorifice 14 of theshank 10, and includes one ormore teeth 44 extended into thebore 43 thereof and aligned with theteeth 16 of theshank 10. - Another
fastener 50 is engaged into or through theorifice 14 of theshank 10 and engaged into thebore 43 of thegasket 40, and includes one ormore teeth 52 engaged with theteeth shank 10 and thegasket 40, and includes an enlargedhead 53 engaged with theshank 10, and includes a threadedend 54 formed therein, for engaging with alock nut 55, and includes ascrew hole 56 formed therein. - It is to be noted that the
elongate shank 10 includes ahollow chamber 11 formed therein, and may thus include a hollow structure for reducing the weight of the elongate shank and the bicycles, and may further include a gasket engaged therein, for reinforcing theelongate shank 10. - The conventional cranks fail to provide a
shank 10 having ahollow chamber 11 formed therein, and one ormore gaskets chamber 11 and retained between thewalls shank 10. - Accordingly, the crank for bicycles in accordance with the present invention includes a hollow structure for reducing the weight of the cycles, and includes a gasket engaged therein, for reinforcing the crank.
- Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (7)
1. A crank for bicycles comprising:
an elongate shank including a chamber formed therein and defined by an upper wall and a lower wall, and including an orifice formed therein, and a gasket engaged into said chamber via said orifice of said shank.
2. The crank as claimed in claim 1 , wherein said gasket is engaged between said upper and said lower walls of said shank and includes a bore formed therein, and a fastener is engaged through said orifice of said shank and engaged through said bore of said gasket.
3. The crank as claimed in claim 2 , wherein said shank includes at least one tooth extended into said orifice thereof, said gasket includes at least one tooth extended into said bore thereof and aligned with said at least one tooth of said shank, and said fastener includes at least one tooth engaged with said at least one tooth of said shank and said gasket.
4. The crank as claimed in claim 1 , wherein said gasket includes at least one slot formed in an outer peripheral portion for increasing a resilience of said gasket, and for engaging into said chamber via said orifice of said shank.
5. The crank as claimed in claim 1 , wherein said shank includes an aperture formed therein and having an inner diameter smaller than that of said orifice thereof, a second gasket is engaged into said chamber via said orifice of said shank and includes a bore aligned with said aperture of said shank.
6. The crank as claimed in claim 5 , wherein said shank includes at least one tooth extended into said aperture thereof, said gasket includes at least one tooth extended into said bore thereof and aligned with said at least one tooth of said shank.
7. The crank as claimed in claim 6 further comprising a fastener engaged through said aperture of said shank and said bore of said gasket, and including at least one tooth engaged with said at least one tooth of said shank and said gasket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/168,900 US7530290B2 (en) | 2005-06-27 | 2005-06-27 | Crank for cycles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/168,900 US7530290B2 (en) | 2005-06-27 | 2005-06-27 | Crank for cycles |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060288817A1 true US20060288817A1 (en) | 2006-12-28 |
US7530290B2 US7530290B2 (en) | 2009-05-12 |
Family
ID=37565710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/168,900 Expired - Fee Related US7530290B2 (en) | 2005-06-27 | 2005-06-27 | Crank for cycles |
Country Status (1)
Country | Link |
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US (1) | US7530290B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070017318A1 (en) * | 2005-07-19 | 2007-01-25 | Bear Corporation | Wedging bicycle crank |
US20100064845A1 (en) * | 2005-07-19 | 2010-03-18 | Bear Corporation | Bicycle Crank Assembly |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8820192B2 (en) * | 2009-04-29 | 2014-09-02 | Race Face Prerformance Products Inc. | Bicycle crank arm and insert therefore |
US8616085B2 (en) * | 2010-08-18 | 2013-12-31 | Shimano Inc. | Bicycle crank assembly |
CN112517887A (en) | 2016-04-11 | 2021-03-19 | 福克斯制造有限公司 | Method for forming a bicycle front sprocket assembly |
US11014628B2 (en) | 2017-04-28 | 2021-05-25 | Fox Factory, Inc. | Cinch direct mount 2X ring system |
US11359709B2 (en) | 2018-12-18 | 2022-06-14 | Fox Factory, Inc. | Chainring |
US11680633B2 (en) | 2019-02-08 | 2023-06-20 | Fox Factory, Inc. | Chainring |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3361459A (en) * | 1966-05-16 | 1968-01-02 | Gen Motors Corp | Idler arm bearing assembly |
US4034575A (en) * | 1973-04-11 | 1977-07-12 | Harald Barth | Annular elastic component for flexible jaw coupling |
US4121474A (en) * | 1971-10-23 | 1978-10-24 | Jose Domingo Arregui Suinaga | Multiple crown free wheel systems for bicycles |
US4521207A (en) * | 1982-06-11 | 1985-06-04 | Royce H. Husted | Incrementally variable transmission |
US4882945A (en) * | 1989-04-17 | 1989-11-28 | Jose Trevizo | Pedal extension device |
US5440950A (en) * | 1991-12-09 | 1995-08-15 | Tranvoiz; Rene | Device for quick mounting and removal of a shaft, such as a pedal shaft |
US20030188602A1 (en) * | 2002-04-09 | 2003-10-09 | Lubanski Steven Robert | Side-mounted detachable pedal assembly |
US6830259B2 (en) * | 2003-02-05 | 2004-12-14 | Petar Jakovljevic | Pedal-type driving device suitable for bicycle |
US20070204721A1 (en) * | 2005-12-02 | 2007-09-06 | Campagnolo S.R.L. | Bottom bracket assembly of a bicycle |
-
2005
- 2005-06-27 US US11/168,900 patent/US7530290B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3361459A (en) * | 1966-05-16 | 1968-01-02 | Gen Motors Corp | Idler arm bearing assembly |
US4121474A (en) * | 1971-10-23 | 1978-10-24 | Jose Domingo Arregui Suinaga | Multiple crown free wheel systems for bicycles |
US4034575A (en) * | 1973-04-11 | 1977-07-12 | Harald Barth | Annular elastic component for flexible jaw coupling |
US4521207A (en) * | 1982-06-11 | 1985-06-04 | Royce H. Husted | Incrementally variable transmission |
US4882945A (en) * | 1989-04-17 | 1989-11-28 | Jose Trevizo | Pedal extension device |
US5440950A (en) * | 1991-12-09 | 1995-08-15 | Tranvoiz; Rene | Device for quick mounting and removal of a shaft, such as a pedal shaft |
US20030188602A1 (en) * | 2002-04-09 | 2003-10-09 | Lubanski Steven Robert | Side-mounted detachable pedal assembly |
US6830259B2 (en) * | 2003-02-05 | 2004-12-14 | Petar Jakovljevic | Pedal-type driving device suitable for bicycle |
US20070204721A1 (en) * | 2005-12-02 | 2007-09-06 | Campagnolo S.R.L. | Bottom bracket assembly of a bicycle |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070017318A1 (en) * | 2005-07-19 | 2007-01-25 | Bear Corporation | Wedging bicycle crank |
US7267030B2 (en) * | 2005-07-19 | 2007-09-11 | Bear Corporation | Bicycle crank assembly |
US20070289405A1 (en) * | 2005-07-19 | 2007-12-20 | Bear Corporation | Bicycle crank assembly |
US20070289407A1 (en) * | 2005-07-19 | 2007-12-20 | Bear Corporation | Bicycle crank assembly |
US20070289406A1 (en) * | 2005-07-19 | 2007-12-20 | Bear Corporation | Bicycle crank assembly |
US7523685B2 (en) | 2005-07-19 | 2009-04-28 | Bear Corporation | Bicycle crank assembly |
US7523684B2 (en) | 2005-07-19 | 2009-04-28 | Bear Corporation | Bicycle crank assembly |
US20100064845A1 (en) * | 2005-07-19 | 2010-03-18 | Bear Corporation | Bicycle Crank Assembly |
US7770492B2 (en) | 2005-07-19 | 2010-08-10 | Bear Corporation | Bicycle crank assembly |
Also Published As
Publication number | Publication date |
---|---|
US7530290B2 (en) | 2009-05-12 |
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